<template>
  <a-layout>
    <a-layout-content
        :style="{ background: '#fff', padding: '24px', margin: 0, minHeight: '280px' }"
    >
      <a-row :gutter="24">
        <a-col :span="8">
          <p>
            <a-form
                layout="inline"
                :model="param"
            >
              <a-form-item>
                <a-button
                    type="primary"
                    @click = "handleQuery()"
                >
                  查询
                </a-button>
              </a-form-item>
              <a-button type="primary" @click="add()" size="large">
                新增
              </a-button>
            </a-form>
          </p>
          <a-table
              v-if="level1.length > 0"
              :columns="columns"
              :row-key="record => record.id"
              :data-source="level1"
              :pagination="false"
              :loading="loading"
              size="small"
              defaultExpandAllRows
          >
            <template #name="{ text,record }">
              {{record.sort}} {{text}}
            </template>
            <template v-slot:action="{test,record}">
              <a-space size="small">
                <a-button type="primary" @click="edit(record)" size="small">
                  编辑
                </a-button>
                <a-popconfirm
                    title="删除后不可恢复,确认删除?"
                    ok-text="是"
                    cancel-text="否"
                    @confirm="handleDelete(record.id)"
                    @cancel="cancel"
                >
                  <a-button type="danger" size="small">
                    删除
                  </a-button>
                </a-popconfirm>
              </a-space>
            </template>
          </a-table>
        </a-col>
        <a-col :span="16">
          <p>
            <a-form layout="inline" :model="param">
              <a-form-item>
                <a-button type="primary" @click="handleSave()">
                  保存
                </a-button>
              </a-form-item>
            </a-form>
          </p>
          <a-form :model="doc" layout="vertical">
            <a-form-item >
              <a-input v-model:value="doc.name" placeholder="名称"/>
            </a-form-item>
            <a-form-item >
              <a-tree-select
                  v-model:value="doc.parent"
                  style="width: 100%"
                  :dropdown-style="{ maxHeight: '400px', overflow: 'auto' }"
                  :tree-data="treeSelectData"
                  placeholder="请选择父文档"
                  tree-default-expand-all
                  :replaceFields="{title: 'name', key: 'id',value:'id'}"
              >
              </a-tree-select>
            </a-form-item>
            <a-form-item>
              <a-input v-model:value="doc.sort" placeholder="顺序"/>
            </a-form-item>
            <a-form-item>
              <a-button type="primary" @click="handlePreviewContent()">
                <EyeOutlined /> 内容预览
              </a-button>
            </a-form-item>
            <a-form-item>
              <div id="content"></div>
            </a-form-item>
          </a-form>
        </a-col>
      </a-row>

      <a-drawer width="900" placement="right" :closable="false" :visible="drawerVisible" @close="onDrawerClose">
        <div class="wangeditor" :innerHTML="previewHtml"></div>
      </a-drawer>

    </a-layout-content>
  </a-layout>


<!--  <a-modal-->
<!--      title="文档表单"-->
<!--      v-model:visible="modalVisible"-->
<!--      :confirm-loading="modalLoading"-->
<!--      @ok="handleModalOk"-->
<!--  >-->
<!--  </a-modal>-->
</template>

<script lang="ts">
import {defineComponent, onMounted, ref,createVNode} from 'vue';
import axios from 'axios';
import { message, Modal } from 'ant-design-vue';
import { Tool } from '@/util/tool';
import {useRoute} from "vue-router";
import { ExclamationCircleOutlined } from '@ant-design/icons-vue';
import E from "wangeditor"
import router from "@/router";

export default defineComponent({
  name: 'Doc',
  setup() {
    const route = useRoute();
    console.log("路由",route);
    const param = ref();
    param.value = {};//不加空对象会报错
    const docs = ref();//ref绑定响应式数据
    const loading = ref(false);
    //因为树选择组件的状态会随着当前编辑节点变化,所以单独声明一个响应式变量
    const treeSelectData = ref();
    treeSelectData.value = [];


    const columns = [

      {
        title: '名称',
        dataIndex: 'name',
        slots: { customRender: 'name' }
      },
      {
        title: 'Actions',
        key: 'action',
        slots: {customRender: 'action'}
      }
    ];
    /**
     * 一级文档树，children属性就是二级文档
     * [{
     *   id: "",
     *   name: "",
     *   children: [{
     *     id: "",
     *     name: "",
     *   }]
     * }]
     */
    const level1 = ref(); // 一级文档树，children属性就是二级文档
    level1.value = [];
    /**
     * 数据查询
     **/
    const handleQuery = () => {
      loading.value = true;
      // 如果不清空现有数据，则编辑保存重新加载数据后，再点编辑，则列表显示的还是编辑前的数据
      // level1.value = [];
      axios.get("/doc/all/" + route.query.ebookId).then((response) => {
        loading.value = false;
        const data = response.data;
        if (data.success) {
          docs.value = data.content;
          console.log("handlequery原始数组：", docs.value);

          level1.value = [];
          level1.value = Tool.array2Tree(docs.value, 0);
          console.log("handlequery树形结构：", level1.value);
          // 父文档下拉框初始化，相当于点击新增
          treeSelectData.value = Tool.copy(level1.value);
          // 为选择树添加一个"无"
          treeSelectData.value.unshift({id: 0, name: '无'});
        }else {
          message.error(data.message);
        }
      });
    };


    //-----------表单----------
    const doc = ref();
    doc.value = {
      ebookId: route.query.ebookId
    };
    const modalVisible = ref(false);
    const modalLoading = ref(false);
    const editor = new E('#content');
    editor.config.zIndex = 0;

    const handleSave = () => {
      modalLoading.value = true;
      doc.value.content = editor.txt.html();
      axios.post("/doc/save", doc.value).then((response) => {
        // modalLoading.value = false;
        const data = response.data;
        if (data.success) {
          // modalVisible.value = false;
          message.success("保存成功!");
          //重新查询列表
          handleQuery();
        }else {
          message.error(data.message);
        }
      });
    };

    /**
     * 将某节点及其子孙节点全部置为disabled
     */
    const setDisable = (treeSelectData: any, id: any) => {
      // console.log(treeSelectData, id);
      // 遍历数组，即遍历某一层节点
      for (let i = 0; i < treeSelectData.length; i++) {
        const node = treeSelectData[i];
        if (node.id === id) {
          // 如果当前节点就是目标节点
          console.log("disabled", node);
          // 将目标节点设置为disabled
          node.disabled = true;

          // 遍历所有子节点，将所有子节点全部都加上disabled
          const children = node.children;
          if (Tool.isNotEmpty(children)) {
            for (let j = 0; j < children.length; j++) {
              setDisable(children, children[j].id)
            }
          }
        } else {
          // 如果当前节点不是目标节点，则到其子节点再找找看。
          const children = node.children;
          if (Tool.isNotEmpty(children)) {
            setDisable(children, id);
          }
        }
      }
    };
    /**
     * 将某节点及其子孙节点全部置为disabled
     */
    const deleteIds: Array<string> = [];
    const deleteNames: Array<string> = [];
    const getDeleteIds = (treeSelectData: any, id: any) => {
      // console.log(treeSelectData, id);
      // 遍历数组，即遍历某一层节点
      for (let i = 0; i < treeSelectData.length; i++) {
        const node = treeSelectData[i];
        if (node.id === id) {
          // 如果当前节点就是目标节点
          console.log("delete", node);
          // 将目标节点放入结果集
          node.disabled = true;
          deleteIds.push(id);
          deleteNames.push(node.name)

          // 遍历所有子节点
          const children = node.children;
          if (Tool.isNotEmpty(children)) {
            for (let j = 0; j < children.length; j++) {
              getDeleteIds(children, children[j].id)
            }
          }
        } else {
          // 如果当前节点不是目标节点，则到其子节点再找找看。
          const children = node.children;
          if (Tool.isNotEmpty(children)) {
            getDeleteIds(children, id);
          }
        }
      }
    };

    /**
     * 内容查询
     **/
    const handleQueryContent = () => {
      axios.get("/doc/find-content/"+doc.value.id).then((response) => {
        const data = response.data;
        if (data.success) {
          editor.txt.html(data.content);
        }else {
          message.error(data.message);
        }
      });
    };
    /**
     * 编辑
     */
    const edit = (record: any) => {
      //清空富文本框
      editor.txt.html("");
      // modalVisible.value = true;
      doc.value = Tool.copy(record);
      handleQueryContent();

      //将"编辑"节点及其子节点全部变为disabled
      treeSelectData.value = Tool.copy(level1.value);
      setDisable(treeSelectData.value,record.id);

      //为选择树添加一个"无";unshift():与push相对,往前面添加一个元素
      treeSelectData.value.unshift({id: 0,name: '无'});
    };

    /**
     * 新增
     */
    const add = () => {
      //清空富文本框
      editor.txt.html("");
      // modalVisible.value = true;
      doc.value = {
        ebookId: route.query.ebookId
      };
      treeSelectData.value = Tool.copy(level1.value);

      //为选择树添加一个"无";unshift():与push相对,往前面添加一个元素
      treeSelectData.value.unshift({id: 0,name: '无'});
    };
    /**
     * 删除
     */
    const handleDelete = (id: number) => {
      // 清空数组，否则多次删除时，数组会一直增加
      deleteIds.length = 0;
      deleteNames.length = 0;
      getDeleteIds(level1.value,id);
      // console.log(level1,level1.value)
      Modal.confirm({
        title: '重要提醒',
        icon: createVNode(ExclamationCircleOutlined),
        content: '将删除:【' + deleteNames.join("，") + '】删除后不可恢复，确认删除？',
        onOk() {
          axios.delete("/doc/delete/"+deleteIds.join(",")).then((response) => {
            const data = response.data;
            if (data.success){
              //重新查询列表
              handleQuery();
            }
          });
        }
      });
    };

    // ----------------富文本预览--------------
    const drawerVisible = ref(false);
    const previewHtml = ref();
    const handlePreviewContent = () => {
      const html = editor.txt.html();
      previewHtml.value = html;
      drawerVisible.value = true;
    };
    const onDrawerClose = () => {
      drawerVisible.value = false;
    };


    onMounted(() => {
      handleQuery();

      editor.create();
    });

    return {
      param,
      // docs,
      level1,
      columns,
      loading,
      handleQuery,

      edit,
      add,

      doc,
      modalVisible,
      modalLoading,
      handleSave,
      handleDelete,

      treeSelectData,

      drawerVisible,
      previewHtml,
      handlePreviewContent,
      onDrawerClose,
    }
  }
});
</script>